package netty.netty4;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;


/**
 * Created by IntelliJ IDEA.
 * User: liuliwei
 * Date: 2017-09-22
 * Time: 下午2:53
 * Description: ${description}
 */
public class DiscardServer {
    private int port;

    public DiscardServer(int port) {
        this.port = port;
    }

    public void run() {
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new DiscardServerHandler());
                    }
                })
                .option(ChannelOption.SO_BACKLOG,128)
                .childOption(ChannelOption.SO_KEEPALIVE, true);

        try {
            ChannelFuture f = b.bind(port).sync();
        } catch (InterruptedException e) {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        int port = 8080;
        new DiscardServer(port).run();

    }
}
